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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (48 topics).
48 topics · 263 messages
Filtered by: #gpio ✕
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Fault monitor on GPIO's.
Hello all, Looking for some guidance on this project. I using a ADAU 1467, driving 5 amp chips and is part of A2B system. I want to send fault and warning flags from the amps and A2B network. I want t
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output routing preset switch/selector
Hi there, I'm looking to create an adaptable system which keeps bringing me back to the ADAU1701 as a potential solution, I plan to have 2 of the outputs hardwired to a 2 channel amplifier board, both
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Configuration of ADAU1467 multipurpose pins MPx
Hello, I am using EVAL-ADAU1467Z and SigmaStudio+ 2.3.0. In the user guide, one can read that MP15, MP14 and MP7 are connected to DIP Switch S3. These pins are dedicated IO pins, i.e. not multiplexed
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GPIO LED control
Hello! My task is to turn on one LED when one position is selected on the switch and turn on another LED if the second position is selected. Surely, this simple task has already been discussed, but I
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Pin output sequence for power on and shut-down amplifier section
Hi guys. I would like to make a logical sequence to turn on the amplifier section with my 1701s. When I generate the start pulse (I use the encoder button) I need two outputs. The first output goes hi
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ADAU1701, Initial state of GPIO, controlling MUTE on DRV632
Hi Forum I'm working on a ADAU1701 board, where I'm using DRV632 buffers as output filter from the DACs to ensure pop free startup from single supply. DRV632 has a Mute pin (pin 5) which is active low
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Can I use this circuit to use GPIO to control MUX ?
I want to use a GPIO to control a MUX in DSP. My GPIO connects to a hardware switch, when switch to SRC1 , it pulls high , when switch to SRC2, it pulls low. Then , I use this curcuit to control MUX i
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ADAU 1467 Bush Button Volume Control with GPIO
I am using the EVAL-ADAU1467Z and I am trying to make the 'PushButton Volume, Mute' block work. Schematic: Multi Purpose Settings: I use the MP pins 18 and 19 of the eval-1467 board. The push buttons
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How to correctly convert GPIO input (23.5) to 28.0 number format?
Hi, i'm a bit confused about how to use a GPIO-input with the Index Selectable Slewing Mux. The GPIO-Input outputs the values 0 and 1 in 23.5 Number format but the Mux awaits the values in 28.0 format
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Need help for ASRC lock noise and GPIO output
Hi my design has 5 input channels to ASRC and I figure out that sometimes noise coming out when ASRC is locking and I searched the answers to solve this problem and I found the only way out but someti
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DSP Readback/Real Time Display doesn't work for 1787 for MPx pins
I tried to check if MP1 and MP2 buttons work with DSP Readback and Real Time Display, but it doesn't read any value from the button when it is pressed or released. I tried various configurations for M
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if and else case in sigma studio
Hey all, I want to do something like this. if a < 0 c = d; else if a >b c = e; else c = f; I would really appreciate if could tell me with what blocks to be used to achieve this conditional case. Than
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ADAU1701 toggle Nth order filters with GPIO
Forgive me if the answer is obvious because this is only my 2nd project in sigmastudio. I want to have selectable Nth order filters using a GPIO. So far I have not used any GPIO in my project. I see t
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ADAU1701 - How to measure time difference between current pulse and previous pulse?
Hello EngineerZone Community, I'm a New Media Artist and I’m using ADAU1701 for my interactive art project where i have to translate pulses into sound. I’m using Analog Devices DSP and SigmaStudio for
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ADAU1450 Volume with External ADC control not working, please help
Hi guys, I have configured the schematic using ADAU1450 in which I am facing a great difficulty in making the external DC volume work. I am using Log lookup table and not clear on what values I should
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Limiter indicator led
Hi, I am looking for a very low instruction usage setup which can switch on a led when the treshold of a limiter is reached. I have this setup: But the signal detection block, stays on too long as the
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Connect GPIO pin to incoming audio signal?
I suspect my title is cryptically obtuse so here's the bigger story. I need to sense when a particular audio jack has been plugged into but I don't have an isolated switch to use. The jack has only "s
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ADAU1701 AUX controlled "graphic EQ" possible?
Is it possible to design an eq with fix frequency and Q and make the cut/boost variable with an external potentiometer? I want to use the four aux analog inputs to controll some fixed frequencies live
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ADAU1442 potentiometer
Hi, I make a musical instrument using ADAU1442. I do not understand a method to change the volume with a potentiometer. Please tell me the method.
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Why does the blinking led example in AN-951 not work?
I am trying to get some custom hardware up and running and the blinking led example does not work. I can manually toggle the output pins by using the read/write registers tool but I cannot generate th
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EVAL-ADAU1442 GPIO with 96kHz
I am having trouble with the read / write registers for a volume control using the EVAL-ADAU1442EBZ board and GPIO expansion - everytime I turn off the device, the volume is reset to 0dBFS - the previ
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ADAU1452 GPIO
In the Evaluationboard User Guide ( UG-636) is written, that GPIO MP5 is on TP38. If I look on the schematic of UG-636 : TP38 is analog input channel ADC1LN. Is the table 4. Multipurpose pins , GPIO's
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GPIO problem w/ ADAU1761
I'm trying to do something that I thought would be simple. I've been using SigmaStudio and the ADAU1761 for several years and I thought I understood how everything works; it looks like I'm coming up s
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GPIO switch
Hi, i'm new in Sigma Studio and i have a question. I'm using the ADAU 1701 and my problem is. I want to press a button/switch on my board, and when the button is pressed the DSP has to generate a spec
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1701 LOOKUP TABLE PROBLEM
Hi to everybody, I have a different problem with a Lookup Table. I don't understand because this cyclical simple regulation of volume with the LInkCompile works well, the output on the dac2 is positio